Societe Nationale Industrielle Aerospatiale Diamant A Diamant B Diamant BP
Overall
Vehicle		 Operational from 26.11.1965 10.03.1970 06.02.1975
  to 15.02.1967 21.05.1973 27.09.1975
Orbital flights   4 5 3
Payload weight t Mission 0.038 Mission 0.115 Mission 0.112
Gross liftoff weight t 18.466 24.585 26.327
Gross propellant weight t 15.655 20.96 22.30
Total length m 18.94 23.18 21.36
Max. diameter (span) m 2.70 2.70 2.70
Total liftoff thrust (s.l.) kN 265.5 349.1 349.1
Total impulse (vac) MN*s 36.5 51.8 55.8

Fairing

 Total length m 2.18 2.80 0.64 + 3.46
Diameter m 0.65 0.85 1.51/ 1.38
Total weight t 0.05 0.08 0.135
Stage 3

Name

        
  Length m 1.42 (2.06) 1.01 (1.65) 1.65
Diameter m 0.65 0.85 (0.80) 0.80
Liftoff weight t 0.736 0.780 0.780
Propellant weight t 0.641 0.685 0.685
Engines   SEP P0.6 SEP P0.7 SEP P0.7
Propellant   solid Isolane 28/7 solid Isolane 29/9 solid Isolane 29/9
Total thrust (vac) kN 38.2 41.2 41.2
Specific impulse (vac) N*s/kg 2677 2707 2707
Burn time s 44.9 45 45
Total impulse (vac) MN*s 1.7 1.8 1.8

Stage 2

 Name   Topaze Topaze Rita 1
  Length m 5.52 (4.72) 5.52 (4.72) 2.60 (3.55)
Diameter m 0.85 0.85 1.51
Liftoff weight t 2.93 2.93 4.40
Propellant weight t 2.275 2.275 3.620
Engines   SEP P2.2 (4) SEP P2.2 (4) SEP P4.0
Propellant   solid Isolane 28/7 solid Isolane 28/7 solid Isolane36/9
Total thrust (vac) kN 120.1 120.1 176.5
Specific impulse (vac) N*s/kg 2500 2500 2677
Burn time s 47.4 47.4 54.9
Total impulse (vac) MN*s 5.7 5.7 9.7

Stage 1

 Name   Emeraude Amethyste (L 17) Amethyste (L 17)
  Length m 9.98 14.01 14.68
Diameter m 1.40 1.40 1.40
Liftoff weight t 14.712 20.68 20.90
Propellant weight t 12.739 18.00 18.00
Engines   LRBA Vexin LRBA Valois LRBA Valois
Propellant   Turpent./NitricAcid UDMH/N2O4 UDMH/N2O4
Total thrust (s.l.) kN 265.5 349.1 349.1
Specific impulse (s.l.) N*s/kg 2010 2167 2167
Burn time s 96.5 111.7 111.7
Total impulse (vac) MN*s 29.1 44.3 44.3